Although fruit-type bulb kale and kale (lotus white) are close relatives, there are some differences in cultivation methods, which are related to the environmental conditions it requires. Fruit-type bulb kale can withstand low temperatures of -20 ℃, but seedlings are easy to pass through the spring flowering stage and early shoots at low temperatures. Therefore, it is not advisable to choose fall and winter sowing in the northern region, and the general greenhouse sowing period is in mid- to late December, the transplanting period is in early February, and a large number of them are on the market in early April. If it is open field cultivation, cultivation time in mid-March, the use of small arches seedlings, in early to mid-May began to harvest bulbs.

Conventional bulb kale yields are very high, late-maturing varieties are usually more than 5 kilograms, the largest have more than 10 kilograms. In terms of choosing varieties, it is important to strictly differentiate from the regular bulb kale and choose the varieties that are most preferred by the consuming public. Through the domestic related research unit test demonstration, the following two are more suitable:

Purple skunk cabbage: bulb round, purple skin, leaf green, white flesh, better quality, light disease, 60 days after planting can be harvested. Use about 8,000 seeds (about 25 grams) per mu.

Li Pu: bulb flat round, light yellow-green skin, light green leaves, plant type upward tilt, suitable for dense planting, single ball weight of 500 grams or so, taste crisp, excellent quality, disease resistance, planting about 60 days after harvest.

Fruit-type bulb kale seedling method is similar to ordinary kale, you can take the ordinary seedling method, preferably with seedling tray seedling. The standard of cultivating strong seedlings is that the leaves reach 5 to 6 leaves before transplanting, and gradually unveil the greenhouse film 3 to 5 days before transplanting to lower the temperature and reduce the slowing down of seedlings.

Fruit-type bulb kale prefers a light-rich environment, so it is generally not planted in sets with other vegetables and food crops. It is in the temperature above 30 ℃ high temperature, bulb fibrosis, resulting in quality decline, the best temperature to maintain a good knotting period between 10 to 22 ℃ in order to produce the best products, so on the planting can not be too late in early June in Shaanan produced fruit-type bulb kale can not be sold at a good price.

Fruit-type bulb kale for the type of arable land does not require high conditions, but to loose airy sandy loam high yield, in order to facilitate the management and reduce the incidence of pests and diseases, it is best to choose a high organic content of loamy soil cultivation is best.

Vegetable garden cultivation of fruit-type bulb kale, preferably before transplanting into the rotted farmyard manure 3000 kg, with the application of potassium sulphate-type three yuan compound fertilizer 30 kg after ridging cultivation. According to the market situation, you can choose to cover the film cultivation, with two-color film is the best, one side of cream, one side of black, you can maximize the prevention of weeds and increase yield, early harvest period, you can achieve the maximum economic benefits.

Fruit-type bulb kale plant is small, suitable for dense planting. Generally in accordance with equal distance cultivation, planting density per mu control in 5500 ~ 6000 plants. In addition, 300 to 500 seedlings are kept in the ground or nursery to prevent underground pests and other hazards from causing seedling shortage.

Fruit-type bulb kale seedlings don't need a moist soil environment after transplanting, otherwise it will cause the number of leaves to be too many and produce late and small bulbs. Therefore, after the seedlings are planted, a light watering to encourage the root system to compact the soil and restore growth, and then control-based, until the bulb rapid expansion period, only began to keep the soil moist, maximize bulb yield and ensure that the quality of the bulb is fresh and tender, until the harvest 2 ~ 3 days before the watering to stop.

Bulb kale fertility period is short, wait until the end of the seedling control, each mu of land into the three compound fertilizer 20 kg plus urea 20 kg, rapid expansion period and then into the urea 20 kg, watering after fertilization. Foliar spraying of potassium dihydrogen phosphate 2 times to the back of the leaves, the concentration of 100 kilograms of water plus potassium dihydrogen phosphate 0.3 kilograms.

Fruit-type bulb kale pests and diseases are similar to kale and can be prevented according to conventional measures. When the surface of the bulb appears white wax, the heart leaf bearing parts from the depression to become flat to start harvesting, avoid the epidermis becomes thicker, the fleshy stem fiber is not aged before harvesting.

The core of fruit-type bulb kale cultivation is to prevent undercooked shoots and high-temperature quality decline, so determine the appropriate seedling period and harvest period, and then selected according to the market situation of the appropriate varieties, conventional management can be successful, provided that it can not be and cabbage, radish, kale, rape and other cruciferous plants in succession to prevent the disease is serious and the imbalance of soil nutrients, in order to achieve high yield and high quality.